Hydrocarbon burner



Jan. 4, 1`927.

C. R. SMITH HYDROCARBON BURNER Filed May 22' 1924 2 Sheets-Sheet l Filed May 22, 1924 2 Sheets-Sheei 2 EN Q\ @Y Ll A\ Patented Jan. 4, 1927.

CHARLES R. SMITH, OF CHICAGO, ILLINOIS.

HYDROCARBON BURNER.

Application filed May 22, 1924. Serial No, 715,065.

rl`his invention relates to in'iprovements in hydrocarbon burners in which petroleum, kerosene, crude oil, etc., are first converted into vapor, then mixed with oxygen, atmospheric air, or other suitable gases and burned thus producing a very high temperature. rlf'heV burner is adapted for use in heating steam boilers in commercial use, or in house heating, or for a variety of other purposes.' l@ne object is to provide a burner of this type provided with automatic carbon and 'scale-cleaning means whereby obstruction oi the oil or vapor passageways is prevented. 'A further object is to provide a burner having automatic safety mechanism whereby the oil supply to the burner will be cut off in the event the 'flame is extinguished from any cause. A further object i's to provide a burner having combination automatic and manually controlled vmeans for supplying atmospheric air in the most suitable proportion to the vapor previous to or during combustion lof the same.

Simplicity in construction, cheapness of manufacture and efficiency in operation are other objects attained.

With the foregoing and other objects in view the invention consists in the combination and arrangement of parts to be herein-y after fully described, pointed out in the ap` pended claims and illustrated in the accomi'rianying drawings which form a part of this application and in which- Fig. 1 is a fragmentary sectional view of the tire pot of a heating plant illustrating the application of the burner.

Fig. 2 is an enlarged sectional view of the burner taken on line 2-2 of Fig. 1.

Fig. 3 is a sectional View taken on line 3 3 of Fig. 2.

Fig. 4 is a face view of the hand damper employed and is taken along the line 4 4 mining tube G, likewise supported upon posts 4, that at its outer end is provided with the draft regulator or damper 7, having the finger piece 8, that is formed with a central perforation to receive one end of the nozzle 9, provided with the adjusting'nut 10, that is screwed into'a threaded perforation in the generator 11 provided with the screw plug 12, said generator comprising the jet 13 ine5 tegral with the priming cup 14 that encompasses the base of the generator and supports the same, said generator being formed,

further, with the peripheral perforations 15 arranged in a circle, said priming cup being 'I vadapted to contain liquid fuel 16 as shown in Fig.` 2. A cage 15a formed with perforations 15b, open at its lower end, encompasses and protects the generator, priming cup and coil', (described hereinafter) the screw plug T 12 fitting into a perforation in said cage.

The iet 13 registers with a central perforation in the base of the priming cup and immediately therebeneathis a vapor nozzle 17 in the lower threaded end of which an adjusting screw 18 is arranged, said 'screw having a small expansion coil spring, or wire 19 secured to the inner' end thereof, said spring terminating in a needle 2O that eX- tends outwardly through a perforation in the upper vopen end` of the vapor nozzle. T he said vapor nozzle is carried at lthe lower end of the elbow 2l aligned with a perforation in the priming cup 14, said elbow receiving one end of a pipe coil 22 the main portion of which encircle's the generator body, the opposite end of said pipe coil passing through another perforation in the said priming cup and being connected to the service pipe 23 that extends out through a perforation 24 in the ash door of the heating plant to the pressure tank containing the fuel. The coil 22 is provided Vinteriorly with a strand of wire 22a that projects beyond one'end of the coil. To clean carbon, scale, etc., from the interior of the pipe the coil is disconnected from the service pipe and the wire 22 moved back and forth therein by hand. Ordinarily vibration of the wire 22 caused by operation of the burner will prevent or retard the accumulation of carbon.

Thesaid service pipe is provided with a control valve 25 the handle 26 of which is extended from the pipe to a point beneath the priming cup and there supports a trip pan 27. The weight of this pan is such that f lll() Ill) when it is empty it will be supported by the valve in the open position of the same, however, should the pan be iilled With oil the added Weight will cause the oil pan to depress the handle 26 and close the valve 25 thus shutting off the supply of oil passing through the pipe 23 from the tank.

In operation the primin cup is filled with oil Which is then ignited; this will heat the coil 22 and the generator. The oil is now turned on at the pressure tank, care being taken to note that the trip pan 27 is in raised position, shown in F ig. l, thus opening the valve 25. The oil passing through the coil 22 will be partly or completely 'vaporized by the heat and this Vapor is ignited at the burner cap 3 and orifices l5. The flame at the cap 3 servos to heat the plant or house While the flame at the orifices l5 serves to keep the coil 22 heated thus 'vaporizing the fuel before it reaches the generator. lhis `fiame will also cause a rush of air into the jet I3 which mixes with the vapor fuel pre *ious to combustion of the same. A greater degree of air is added to the mixture, as it passes into the mixing tube 6, by the damper 7, the amount of air here admitted being regulated by attendant as desired by turning the damper.

A strong draft of air is maintained through the burner by the combustion of the fuel and this draft Will be sufficient to agitate the needle and cause the same to lreep the lperforation through which it extends in the yapor nozzle free from carbon and foreign matter generally. rIhis needle may -be gently manipulated, When the burner is not functioing, by hand should the necessity arise. In the event the fiame should be extinguished by excessive draft, Water in the oil, vor other cause t-he liquid Will iow from the vapor' nozzle 17 and fall into the drip pan 27 thus causing the same to drop and close the valve 25.

YWhat is claimed is l. In a hydrocarbon burner comprising a burner head and a mixing tube therefor, a damper for one end of said mixing tube, a generator comprising a perforate shell and a extending upwardly from the lower end of said shell, the body of said liet being spaced away from said shell, a priming cup integral with said jet and encompassing the base of said shell, a nozzle adjustably connecting said damper and generator shell, a pipe coil haring connection with an oil service pipe and extending through said priming cup and encircling said generator shell, an elbow carried by said priming cup, and a vapor nozzle carried by said elbow and operatively associated with said jet.

2. In a hydrocarbon burner comprising a burner head and a mixing tube therefor, a damper for one end of said mixing tube, a perforate cage adjacent said damper, a generator comprising a perforate shell and a jet Within said cage, said jet extending upwardly from the lower end of said shell, the body of said jet being spaced away from said shell, a priming cup integral With said jet and encompassing the base of said shell, a nozzle adjustably connecting said damper and generator shell and extending through said cage, a pipe coil having communication With an oil service pipe and extending through said priming cup and encircling said generator shell, an elbow carried by and disposed beneath said priming cup, and a vapor nozzle carried by said elbow and operatively associated With said jet.

In testimony that I claim the yforegoing as my own I have hereto affixed my signature.

CHARLES R. SMITH. Y 

